107. Calliandra renvoizeana Barneby, nom. nov.  C. gracilis Renvoize, Kew Bull. 36: 73, fig. 2(19), 5(E, F). 1981. — "Brazil. Bahia [s.-w. of] Mucugé [on road from Cascavel, ±41°25'W, 13°02'S, 6 Feb 1974, fl, fr], Harley et al 16061." — Holotypus, CEPEC!; isotypi, K!, NY!. — Non C. gracilis Grisebach, 1861.

C. gracilis sensu Harley & Simmons, 1986: 114; Lewis, 1987: 174.

Virgate, thinly foliate subshrubs attaining ±12 dm, the simple stem glabrate and vertically striped proximally but pilose distally with straight spreading, lustrous white hairs to 1.3-2 mm, the lvs glabrous except for adaxially barbellate axes and rare random cilia, the few-fld capitula (1—)2—3 together in upper lf-axils and, beyond these, forming a short efoliate pseudoraceme; phyllotaxy distichous. Stipules ovate from shallowly cordate base, ±6-10 x 3-6 mm, thinly herbaceous, facially glabrous, ciliate, palmately many-nerved, deciduous long before the associated If. Lf-formula i/40-58; lf-stks including pulvinus 5-7 x 1-1.4 mm; rachis of longer pinnae 7-9 cm, the interfoliolar segments 1.4-2 mm; lft-pulvinules 0.3 x 0.6-0.9 mm; lfts scarcely graduated, the blades narrowly oblong-elliptic from obtusely auriculate base, at apex obtusely deltate, the larger ones 5-8.5 x 1.7-2.2 mm, 3-4 times as long as wide; venation almost fully immersed, the midrib faintly perceptible dorsally but not prominulous. Peduncles 3.5-5 cm, ebracteate; capitula 3-7-fld, the receptacle ±2 x 2.5 mm; bracts resembling stipules in shape and size, caducous; fls subsessile homomorphic, the obese drum-shaped pedicel 0.9-1.2 x 1.3-2.5 mm; perianth 5-merous, glabrous proximally, thinly pilose distally, faintly several-nerved; calyx turbinate-campanulate 6-9 x 5-6 mm, the ovate lobes 3-4 mm; corolla 8.5-11.5 mm, the ovate lobes 3-4 mm; androecium 60-65-mer- ous, 4—5 cm, the thickened stemonozone ±2 mm, the tube 6.5-10 mm, the tassel white rubescent. Pods in profile ±10 x 1 cm, densely softly pilose overall, the sutural ribs in dorsal view ±2 mm wide, the valves externally evenulose; seeds (not seen fully ripe) ±8.5 x 4.5 m, the narrowly U-shaped pleurogram pallid.

In campo rupestre or wooded grassland, on stony soils, 900-1000 m, known only from Sa. do Sincorá in interior Bahia, Brazil: s.-w. of Mucugé (40°25'W, 13°02'S) and between Mucugé and Andaraí (41° 18'W, 12°15'S). — Fl. II—III, VI.

Calliandra renvoizeana resembles C. debilis in virgate habit, ovate venulose stipules, and few-flowered capitula, but differs in more numerous and narrower leaflets, distally pilose stems, peduncles, and flowers, and differently proportioned, longer individual flowers. The type-localities of these sibling species are separated by no more than 8' latitude and 6' longitude.